Asger velschow



PATBNTED MAR. 6, 1906.

A. VBLSGHOW.

INHALING APPARATUS.

APPLIOATION FILED mnae. 1905.

w'rwlym illn- Milli;

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented March 6, 1906.

Application filed May 26, 1905. $erial No. 262,356.

To all whom it may concern:

Be it known that I, ASGER VELSGHOW, a citizen of the United States,residing at Oakland, in the county of Alameda and State of California,have invented new and useful Im provements in Inhaling Apparatus, ofwhich the following is a specification.

My invention relates to an inhaling apparatus, and is especiallydesigned for use at night and for the purpose of providing a constantsupply of fresh air to the lungs.

It consists in the combination of parts and details of constructionwhich will be more fully explained by reference to the accompanyingdrawings, in which Figure 1 shows the application of my apparatus. Fig.2 is an enlarged section of the inhaling portion. Fig. 3 shows thedischarge and heat-distributer.

Many of the ailments of the human race arise from the lack of asufliciency of fresh air, and especially at night where persons areconfined to rooms continuously for many hours. The effort to ventilatesuch rooms by opening the Window and then pulling a heavy shade downover it is ineffective, and if the window is left full open andunprotected on cold or windy nights a great deal of discomfort andillness will follow.

It is the object of my invention to provide a continuous source of pureair for breathing purposes without exposing the person to too great adegree of cold and making it necessary to increase the bed-coverings tosuch an extent as to impede the cutaneous exhalations.

Inmy invention I employ a mouthpiece adapted to fit the mouth andnostrils of the user and a means for conveniently suspending it withrelation to the bed or other position occupied by the user and a seriesof suit ably-opening valves connecting with atsource of pure-air supplyand a discharge-opening through which the vitiated air may be delivered.

As shown in the drawings, A is an inletpassage, which may be connectedwith the open air or source of supply at one end, and the other endconnects with the mouthpiece, as at 2. This mouthpiece projectstransversely from the tube B at a point between the inlet A anddischarge-passage 4:. Intermediate between the inlet-passage and themouthpiece are one or more soft fiat valves, as at 3. Such valves may beof substantially cone shape and made of thin rubber or other equivalenttubing, having the periphery at one end attached to the interior of thetube A and the other or smaller end adapted to close with the edges flatagainst each other, so that while air is allowed to freely enter throughsuch valves it is prevented from returning by the closing of the flapsor edges of the tube. One or more of these flaps may be employed, asfound requisite or desirable. The mouth piece 2 also serves for theattachment of pneumatic cushions 2 of any suitable character which willeasily fit over the mouth and nostrils, and, if preferred, thesecushions may be secured by bands 8 or otherwise, so that they will notbecome displaced while the user is asleep. This apparatus may besuspended from a bracket 6 from the head of the bed, wall, or ceilingand having a sufficiently free movement to adapt itself to any changesof position of the user. Flexible tubing 7 may form the connections.

Connecting with the mouthpiece and with that part of the apparatus fromwhich it projects is a discharge-passage 4, this passage having fiatvalves 5, of a character similar to those previously described andopening outwardly, so that air is drawn in through the pipe A and valves3, and that when exhaled the valves 3 are closed and the valves 5 willopen to allow the escape of thevitiated air. This passage 4 may eitherdischarge directly into the room or it may lead entirely out of theroom, if preferred.

To assist in maintaining the device in position over the face of thepatient, the tube B is provided near its inlet end with a transverse armor support 12, having a cushion or pad 13 shaped to fit the forehead ofthe patient, with straps 8 adapted to pass around the head, as shown inFig. 1.

In order to utilize the heat of the exhaled air and to apply it so as toassist in keeping the body warm, the exhaust-passage may have connectedwith it a conductor 9 to deliver the warm air into or through the spaceoccupied by the person using the apparatus. Such space may consist ofthe inclosure 10 between the blankets and bedclothing, or it may consistof a sleeping-bag or other outdoor convenience.

The tube is preferably flexible and expanded into or connected with areceiver of baglike form, as shown at 11 in Fig. 3, and this tube or bagmay be applied to the back between the shoulders or to'other parts ofthe body in the case of persons of low vitality,

and when used in cold climates or in outdoor sleeping it enables theuser to resist a much lower temperature than otherwise. As the airexhaled from the lungs is loaded with moisture, it is preferable toretain it in the tube or conductor, which will be heated by its passage,and to discharge it after it has served its purpose by leading itoutside the bag or bedclothing. 7

T he device may also be made a vehicle for applying remedies which canbe made the subject of inhalation. It enables delicate persons to securethe benefit of pure air to breathe without subjecting the body to severecold or the discomfort of too heavy or oppressive bedclothing and isespecially valuable to retain as much heat as possible around the bodywhen exposed to verylow temperatures.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In an apparatus for providing fresh air for breathing purposes, atube having an inlet and outlet at opposite portions, means on said tubeat points between its ends for sup porting the tube relative to the faceof the patient, one of said supports constituting a mouthpiece, valvesin the tube operating to admit fresh air during the inhalations of thepatient and to discharge vitiated air during exhalation, and a conductorfor the exhaled air adapted to convey the warmth of said air to thepatients body.

2. An apparatus of the character described comprising a tube with inletand discharge passages, side pro ect1ons on the tube fashioned to fitthe mouth and forehead of the patient and provided with means formaintaining the tube in position, a fresh-air-admission tube and meanssuspending the same from an article of furniture, valves in the firsttube and alternately acting to admit to the mouth piece fresh air and toexhale vitiated air, a conductor for vitiated air connecting with thedischargepassage, and a receiver in the length of the conductor throughwhich the vitiated air is caused to pass before final delivery.

3. In a fresh-air apparatus, an inlet-tube and valves, a mouthpiece, anoutlet-tube and valves, and a conductor of bag form connected with theoutlet, and adapted as a receiver for exhaled air and to be applied tothe person of the user said receiver having a dis charge-passage throughwhich the exhaled air is successfully delivered.

4. In afresh-air-supply apparatus,a mouthpiece and means for attachingit, a connecting inlet-tube with inwardly-opening valve, a dischargetube with outwardly opening valve, a flexible bag adapted to fit theperson of the user, and through which the discharged air is caused topass said bag having a delivery-tube through which the exhaled air isdischarged.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ASGER VELSCHOW. Witnesses:

S. H. NOURSE, HENRY P. Tmcot

